Growth performance of brown swiss calves fed early and late cut hay from meadow fertilized by two levels of N and P2O5 von Comakli, Binali, Tan, Mustafa, Ataturk University, Erzurum (Turkey). Department of Agronomy), Tuzeman, Naci, Turgut, Leyla, A.U., Erzurun (Turkey). Department of Animal Science), Mentese, Omer(Eastern Anatolian Research Insitute, Erzurum (Turkey)

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